L39Driver Posted February 18, 2020 Report Posted February 18, 2020 Installing a JPI and need a wiring diagram related to the factory sending units and factory fuel gauges. A PDF or even an email to brienattorney@aol.com would suffice
gacoon Posted February 18, 2020 Report Posted February 18, 2020 I emailed you electrical section of maintenance manual.
L39Driver Posted February 18, 2020 Author Report Posted February 18, 2020 Thank you. Having difficulties downloading it
gacoon Posted February 18, 2020 Report Posted February 18, 2020 Its 33mb, could not email via comcast, had to send a link. Has schematics for most models, you have to select the schematic based on your serial number.
carusoam Posted February 18, 2020 Report Posted February 18, 2020 L39, Do you have any specific questions? The variable resistors aren’t too hard to figure out... they have been discussed around here so many times... If you have multiple level sensors in each tank, know that they are wired in series... While you are spending... did you consider using the Cies gauges for improved fuel level sensing? Support from Cies is pretty good too... Then you have to get an answer of frequency vs. resistance... (resistance is good, frequency is a step better...) Some JPIs can be changed in the field... older ones get sent back to the factory... PP thoughts only, not a mechanic... Best regards, -a-
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